CAR-NK cells for cancer immunotherapy: recent advances and future directions

Front Immunol. 2024 Feb 9:15:1361194. doi: 10.3389/fimmu.2024.1361194. eCollection 2024.

Abstract

Natural Killer (NK) cells, intrinsic to the innate immune system, are pivotal in combating cancer due to their independent cytotoxic capabilities in antitumor immune response. Unlike predominant treatments that target T cell immunity, the limited success of T cell immunotherapy emphasizes the urgency for innovative approaches, with a spotlight on harnessing the potential of NK cells. Despite tumors adapting mechanisms to evade NK cell-induced cytotoxicity, there is optimism surrounding Chimeric Antigen Receptor (CAR) NK cells. This comprehensive review delves into the foundational features and recent breakthroughs in comprehending the dynamics of NK cells within the tumor microenvironment. It critically evaluates the potential applications and challenges associated with emerging CAR-NK cell therapeutic strategies, positioning them as promising tools in the evolving landscape of precision medicine. As research progresses, the unique attributes of CAR-NK cells offer a new avenue for therapeutic interventions, paving the way for a more effective and precise approach to cancer treatment.

Keywords: CAR-NK; adoptive cell transfer; cancer immunotherapy; natural killer cell; the tumor microenvironment.

Publication types

  • Review
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Humans
  • Immunotherapy
  • Killer Cells, Natural
  • Neoplasms*
  • Receptors, Chimeric Antigen* / genetics
  • T-Lymphocytes
  • Tumor Microenvironment

Substances

  • Receptors, Chimeric Antigen

Grants and funding

The author(s) declare financial support was received for the research, authorship, and/or publication of this article. This work was supported by Natural Science Foundation of Zhejiang Province (LQ24H160007), China Postdoctoral Science Foundation (No. 2022M722766 and 2023M743016), and Postdoctoral Fellowship Program of CPSF (No. GZB20230642).